Heat spreader



FIG. 1 is a front view of a heat spreader;

FIG. 2 is a front view of the heat spreader shown in FIG. 1;

FIG. 3 is a back view of the heat spreader shown in FIG. 1;

FIG. 4 is a back view of the heat spreader shown in FIG. 1;

FIG. 5 is a front view of the heat spreader shown in FIG. 1;

FIG. 6 is a bottom view of the heat spreader shown in FIG. 1; and,

FIG. 7 is a side view of the heat spreader shown in FIG. 1.

CLAIM The ornamental design for a heat spreader, as shown and described.